This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

It’s an Arduino controlled “RADAR” like project that uses the familiar Parallax ultrasonic sensor.

Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at ...

This innovative sensor is ideally suited to the demands of machinery operating in harsh outdoor conditions, for example; agricultural, construction and other similar industries where working platforms ...

A new ultrasonic fingerprint sensor measures 3-D image of your finger's surface and the tissue beneath it -- enhancing biometrics and information security for smartphones and other devices ...